code: def check_backward(self, xs_data, gs_data):
      # In this situation the function returns no result
      if len(self.trans_lengths) == 0:
          return
  
      def f(*xs):
          return functions.transpose_sequence(xs)
  
      gradient_check.check_backward(f, tuple(xs_data), tuple(gs_data))
  
file_path: chainer/tests/chainer_tests/functions_tests/array_tests/test_transpose_sequence.py
imports: import unittest
  import numpy
  import six
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 5 for calling the TestTransposeSequence obj's underlying member method code with example usage: obj.check_backward(xs_data, gs_data) and returns: functions